And when you pray, you shall not be as the hypocrites are: for they love to pray standing in the synagogues and in the corners of the streets, that they may be seen of men. Verily I say unto you, They have their reward.
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George Leo Haydock
Hypocrisy is forbidden in all these three good works of justice, but not the doing of them openly for the glory of God, the edification of our neighbour, and our own salvation. Let your light so shine before men, i.e. let your work be so done in public, that the intention remain in secret. (St. Gregory)